HI OP.
so sorry you are feeling this way, but great for recognising that you’re slipping again.
Firstly, do you have a therapist or even someone who you can confide in? A friend/family member, or even a colleague?
When I feel like I’m slipping into old ways, the things that help me are writing down exactly what it is I’m feeling, why I’m feeling that way and what I’m going to do to make myself feel better.
What works for me is walking, exercising, being outside in nature, up in the hills and getting my blood pumping. Cycling too. I love to just put my head headphones on and just work through what I’m feeling and try and rationalise my thoughts.
I also enjoy meditation, you can just YouTube this. Even practice breathing exercises.
During a really dark period in 2020, I started to practice the law of attraction. I absolutely loved this. I wrote down things that I wanted to attract into my life and spoke (in my head) that these things already exist.
Example “I am healthy, I am happy, I am in the best position mentally l, physically & spiritually. I am great friend, colleague & I attract abundance & love”. It might feel silly at first but it really helps. Again plenty of videos on YouTube.
Also cooking, eating healthy & drinking plenty of water.
Sorry for babbling, but I hope this helps.
x